Holds context information about matches between tables during a join operation. More...

#include <join.hpp>

Public Member Functions
	join_match_context (table_view const &left_table, std::unique_ptr< rmm::device_uvector< size_type >> match_counts)
	Construct a join_match_context. More...

	join_match_context (join_match_context const &)=delete

join_match_context &	operator= (join_match_context const &)=delete

	join_match_context (join_match_context &&)=default
	Move constructor.

join_match_context &	operator= (join_match_context &&)=default
	Move assignment operator. More...

virtual	~join_match_context ()=default
	Virtual destructor for proper polymorphic deletion.

Public Attributes
table_view	_left_table
	View of the left table involved in the join operation.

std::unique_ptr< rmm::device_uvector< size_type > >	_match_counts

Detailed Description

Holds context information about matches between tables during a join operation.

This structure stores the left table view and a device vector containing the count of matching rows in the right table for each row in the left table. Used primarily by inner_join_match_context() to track join match information.

Definition at line 73 of file join.hpp.

Constructor & Destructor Documentation

◆ join_match_context()

cudf::join_match_context::join_match_context	(	table_view const &	left_table,
		std::unique_ptr< rmm::device_uvector< size_type >>	match_counts
	)

inline

Construct a join_match_context.

Parameters

left_table	View of the left table involved in the join operation
match_counts	Device vector containing the count of matching rows in the right table for each row in the left table

Definition at line 86 of file join.hpp.

Member Function Documentation

◆ operator=()

join_match_context& cudf::join_match_context::operator= ( join_match_context && )

default

Move assignment operator.

Returns: Reference to this object

Member Data Documentation

◆ _match_counts

std::unique_ptr<rmm::device_uvector<size_type> > cudf::join_match_context::_match_counts

A device vector containing the count of matching rows in the right table for each row in left table

Definition at line 76 of file join.hpp.

The documentation for this struct was generated from the following file:

join.hpp

Public Member Functions